Toyota has certified a fuel-cell powertrain kit for big Class 8 trucks. The kits can be used by companies like Kenworth to power 18-wheelers. No pricing, power, or torque specs were released.

Slick V8-powered kit cars aren't restricted just to cars; Don Hardy makes a wild kit for transforming LUV pickups into street-stomping mini-trucks with small-block-Chevy power and IMSA looks. The kit, ...